US4740258A - Process for embossing flexible sheets of foam material - Google Patents
Process for embossing flexible sheets of foam material Download PDFInfo
- Publication number
- US4740258A US4740258A US06/728,868 US72886885A US4740258A US 4740258 A US4740258 A US 4740258A US 72886885 A US72886885 A US 72886885A US 4740258 A US4740258 A US 4740258A
- Authority
- US
- United States
- Prior art keywords
- embossing
- foam sheet
- belt
- process according
- foam
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
- B29C59/02—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing
- B29C59/04—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing using rollers or endless belts
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
- Y10T156/10—Methods of surface bonding and/or assembly therefor
- Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
- Y10T156/1007—Running or continuous length work
- Y10T156/1023—Surface deformation only [e.g., embossing]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
- Y10T156/10—Methods of surface bonding and/or assembly therefor
- Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
- Y10T156/1039—Surface deformation only of sandwich or lamina [e.g., embossed panels]
- Y10T156/1041—Subsequent to lamination
Definitions
- This invention relates to a process for embossing the surface of flexible sheets of foam material optionally laminated to a synthetic resin sheet or a flat textile form, wherein the sheet of foam material is superficially plasticized by heating and exposed to an embossing pressure by means of an embossing device in accordance with a desired embossing pattern.
- Embossing of the surfaces of sheets of foam material to improve surface quality is conventional and is executed, in particular, with embossing rolls. Compacting of the surface occurs in the region of the embossing zone and, depending on the embossing pressure and depth of penetration, a variously embossed surface is obtained.
- a disadvantageous factor in embossing foam materials by means of embossing rolls is that the flexible foam material does not completely enter into the relief texture or configuration of the embossing rolls and, thus, is not exactly molded, in part, since the air remaining in the relief texture elements cannot escape and a complete molding of the foam material in the embossing structure is prevented.
- the invention is based on the object of providing a continuous process for embossing flexible foam material sheets and making it possible to effect fine as well as coarser embossings with a satisfactory and complete molding of the surface.
- the process of this invention proposes to impress a perforated, metallic embossing belt into the surface of the sheet of foam material, and to remove the belt after cooling and solidification of the surface of the foam material sheet.
- This perforated embossing belt has the advantage that venting is automatically afforded due to the perforations, and a desired, uniform molding of the foam is made possible without limitation due to dammed-up or trapped air.
- the process of this invention provides that, although the foam is compressed during embossing, the foam expands again to its original thickness after termination of the embossing step and, due to the embossing, a minor increase in thickness may occur in dependence on the embossing pattern, on account of the free molding action, without confining means; i.e., counter surfaces, baffles or the like elements on the opposite side of the foam material.
- An advantageous further development during the entire period of the embossing process provides that the impressed embossing belt is cooled during the impressing period.
- the embossing belt is cooled during the impressing period.
- An especially advantageous embodiment of the embossing belt to be utilized with the process of this invention is a wire mesh with open mesh widths of about 0.5-3 mm, constructed as an endlessly revolving belt, especially of stainless steel wire.
- a wire mesh has the advantage that it easily enters the surface of the foam sheet and provides satisfactory venting and penetration of the foam material into the interstices of the mesh.
- the embossing pattern can thus be selected within wide limits, by way of the chosen wire thicknesses and wire spacings; i.e., the so-called mesh numbers.
- the wire mesh is welded into an endless embossing belt.
- Medium and coarse wire mesh structures with mesh numbers of about 25 to 10 have proven themselves well.
- Preferably soft elastic foam sheets which have a compression stress at 25% deflection measured according to DIN 53577 of 25 to 300 KN/m 2 according to a foam density of 25 to 130 kg/m 3 , prefered range 25 to 70 KN/m 2 according to a foam density of 25 to 50 kg/m 3 .
- the foam sheets have preferably closed cells.
- polyolefin foam sheets can be laminated with polyethylene films having a very small thickness of about 200-500 ⁇ m, resulting due to heating during embossing and the elastic recovery of the film effected during the subsequent cooling step in a smooth, profiled surface which has a very good handle and is soft.
- the embossing belt with an ink application for printing the foam sheet so that the embossed surface is imprinted simultaneously with the embossing in the zone of the depressions, where the ink is protected.
- the single FIGURE is a schematic view of a device and of the progression of steps for the embossing of a flexible foam sheet.
- the process of this invention is conducted as an endless embossing procedure for flexible foam materials, especially crosslinked polyolefin foams, such as crosslinked polyethylene foam materials, which exhibit high elasticity.
- the sheet 1 of foam material which--if it comes directly from manufacture--should no longer contain any residual heat, is reheated superficially by means of a heater 2, for example, a quartz radiator or ceramic radiator, until the exposed surface begins to become plasticized.
- a heater 2 for example, a quartz radiator or ceramic radiator
- This temperature lies, in case of crosslinked polyolefin foam sheets, at about 160°-170° C.
- the pair of rolls 3a, 3b provide an inlet nip 4 for the foam, the spacing or size of this inlet nip being about 15-25% smaller than the thickness of the foam sheet 1.
- the two rolls 3a, 3b are driven and are in a cold condition; i.e., at room temperature.
- the roll 3b is fashioned as a pressure roll and can be further cooled, if it heats up too much due to the heated foam sheet 1 at very high speeds of revolution. Furthermore, the endlessly rotating embossing belt 5 is guided around the rolls 3b, 7b; this belt is constructed as a metallic, perforated band, preferably of wire mesh. In the spacing between the rolls 3b and 7b, the embossing belt 5, impressed into the surface of the foam sheet, revolves while contacting the foam sheet and is cooled along this air zone by the ambient air.
- a cooling means 6 can be additionally provided, for example, means for providing additional air cooling (e.g., air jets) which acts in particular on the embossing belt 5.
- additional air cooling e.g., air jets
- heating of the roll 3b and of the embossing belt 5 to temperatures above 50° C. to 60° C. should be avoided in order to obtain a perfect, uniform embossed texture. Since the embossed foam sheet should be in a solidified state at the moment of leaving the belt, it is important, not to raise the processing temperature too high. Therefore, a low belt temperature serves for a quick cooling of the embossed foam sheet and surface and reduces the total length of the belt.
- the roll 7b serves simultaneously as a tensioning roller for the revolving embossing belt 5 and is likewise driven. Furthermore, roll 7a can be driven or not and serves to deflect the foam sheet away from the belt (a take-up device, not shown, acts to take-up the sheet).
- a take-up device not shown, acts to take-up the sheet.
- the duration of heating and also the degree of plasticizing depend on the quality of the foam; higher weights per unit volume must be heated somewhat more vigorously.
- the required amount of heat also depends on the color of the foam and on the fineness or coarseness of the desired embossed texture. Heating of the surface can be effected, as illustrated, for example by means of infrared radiators which can be varied in their spacing and heating power, but also, for example, directly by contact heating via rolls.
- the embossing step takes place a laminating material downstream of the heating unit directly into the inlet nip 4 between the rolls 3a and 3b on top of the heated foam surface and subject this arrangement to embossing.
- the laminating material for example, a synthetic resin film or a textile panel such as a mat or woven fabric, also printed fabrics of cotton or synthetic fibers, should, however, be capable of being shaped and should adhere, if at all possible, to the foam material without any additional adhesives.
- the embossed texture attainable depends, on the one hand, on the quality of the flexible foam material which, in particular, is also determined by its weight per unit volume, and, on the other hand, on the type and structure of the perforated embossing belt.
- the embossing belt 5 can be a punched metal sheet as well as a wire mesh.
- the so-called profile factor is derived from the ratio of inside mesh width:wire diameter; in this connection, medium and coarser wire meshes yield good surface qualities in embossed texture.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3246368 | 1982-12-15 | ||
DE19823246368 DE3246368A1 (de) | 1982-12-15 | 1982-12-15 | Verfahren zum praegen von weichelastischen schaumstoffbahnen |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US06559699 Continuation | 1983-12-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
US4740258A true US4740258A (en) | 1988-04-26 |
Family
ID=6180696
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US06/728,868 Expired - Fee Related US4740258A (en) | 1982-12-15 | 1985-04-30 | Process for embossing flexible sheets of foam material |
Country Status (2)
Country | Link |
---|---|
US (1) | US4740258A (de) |
DE (1) | DE3246368A1 (de) |
Cited By (38)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4929303A (en) * | 1987-03-11 | 1990-05-29 | Exxon Chemical Patents Inc. | Composite breathable housewrap films |
US5183672A (en) * | 1991-04-16 | 1993-02-02 | Gary W. Fetterhoff | Apparatus for forming at least one fold line pattern in a rigid plastic material |
US5268138A (en) * | 1991-04-16 | 1993-12-07 | Gary W. Fetterhoff | Method for forming at least one fold line pattern in a rigid plastic material |
US5350544A (en) * | 1992-03-06 | 1994-09-27 | Earth & Ocean Sports, Inc. | Method of preparing a cross-linked, polyethylene foam product by surface expansion of a foam |
US5356696A (en) * | 1991-04-16 | 1994-10-18 | Fetterhoff Gary W | Apparatus and method for sealing edges of corrugated plastic material |
US5460757A (en) * | 1993-12-29 | 1995-10-24 | Topstamp, Inc. | Method for manufacturing pre-inked stamps |
US5653166A (en) * | 1994-03-29 | 1997-08-05 | Winning Image, Inc. | Method for molding a design in low relief in an ink printed on fabric |
US5698153A (en) * | 1994-04-29 | 1997-12-16 | The Boeing Co. | Method of prescoring foam board |
US5765688A (en) * | 1996-11-25 | 1998-06-16 | Sealed Air Corporation | Embossed foam in bag cushions |
US5776510A (en) * | 1996-11-01 | 1998-07-07 | Sealed Air Corporation | On-demand production of foam cushions with defined three-dimensional geometry |
WO1999004939A1 (en) | 1997-07-23 | 1999-02-04 | Foamex L.P. | Continuous platform cutting apparatus |
US6024907A (en) * | 1998-02-02 | 2000-02-15 | Bruce Jagunich | Embossing with an endless belt composed of a shape memory alloy |
US6085627A (en) * | 1997-07-23 | 2000-07-11 | Foamex L.P. | Apparatus for cutting a cellular polymer surface with multiple continuous platforms |
US6142053A (en) * | 1997-07-23 | 2000-11-07 | Foamex L.P. | Method of cutting a cellular polymer surface with a continous platform cutting apparatus |
US6173638B1 (en) | 1997-07-23 | 2001-01-16 | Foamex L.P. | Method for cutting a cellular polymer surface with multiple continuous platforms |
EP1090950A1 (de) * | 1998-06-25 | 2001-04-11 | NHK Spring Co., Ltd. | Oberflächenverzierte schaumhaut von vernetztem weichem kautschukartigem olefinharz |
US6258308B1 (en) | 1996-07-31 | 2001-07-10 | Exxon Chemical Patents Inc. | Process for adjusting WVTR and other properties of a polyolefin film |
US6264864B1 (en) | 1998-10-16 | 2001-07-24 | Exxon Chemical Patents Inc. | Process for producing polyolefin microporous breathable film |
US6668698B1 (en) | 1997-07-23 | 2003-12-30 | Foamex L.P. | Continuous platform cutting method |
US6675691B1 (en) | 1997-07-23 | 2004-01-13 | Foamex L.P. | Continuous platform cutting apparatus |
US20040028870A1 (en) * | 2002-02-05 | 2004-02-12 | Lehr Gregory S. | Laminate inlay process for sports boards |
US20040151875A1 (en) * | 2003-02-04 | 2004-08-05 | Lehr Gregory S. | Laminate inlay process for sports boards |
US20040266289A1 (en) * | 2003-06-24 | 2004-12-30 | Scott Burke | Expanded polystyrene core sports board |
US6966815B2 (en) * | 2002-06-14 | 2005-11-22 | Invists North America S.R.R.L. | Shaped anti-roll supports and garments incorporating such supports |
US20080185092A1 (en) * | 2007-02-02 | 2008-08-07 | S.D. Warren Company | Tip printing embossed surfaces |
US20080305714A1 (en) * | 2007-03-30 | 2008-12-11 | Sobah-Wilhelm Mary C | Bra and/or bra pad for providing the appearance of symmetry to asymmetrical breasts |
US20090050129A1 (en) * | 2007-08-24 | 2009-02-26 | Catalytic Combustion Corporation | Catalytic converter unit and method for treating cooking emissions |
US20090133909A1 (en) * | 2007-11-26 | 2009-05-28 | Blenkhorn Gary P | Tip Printing and Scrape Coating Systems and Methods for Manufacturing Electronic Devices |
US20090247047A1 (en) * | 2008-03-28 | 2009-10-01 | Roxana Avalos-Dessner | Brassiere cup and brassiere for women having unevenly sized breasts |
US20110024938A1 (en) * | 2009-08-03 | 2011-02-03 | S.D. Warren Company | Imparting texture to cured powder coatings |
US20110186712A1 (en) * | 2007-04-30 | 2011-08-04 | S.D. Warren Company | Materials Having a Textured Surface and Methods for Producing Same |
US20110223831A1 (en) * | 2007-03-30 | 2011-09-15 | Sobah-Wilhelm Mary C | Bra and/or bra pad for providing the appearance of symmetry to asymmetrical breasts |
US20120017663A1 (en) * | 2010-07-23 | 2012-01-26 | Formtech Gmbh | Method for the manufacture of a workpiece with defined surface |
WO2013082290A1 (en) * | 2011-12-02 | 2013-06-06 | Palziv Group | Embossed polymer sheet |
WO2017212292A1 (en) * | 2016-06-10 | 2017-12-14 | Sentient Foams Limited | Absorbent aliphatic polyurethane foam product |
US10334890B2 (en) | 2007-03-30 | 2019-07-02 | Mary C. Sobah | Bra and/or bra pad for providing the appearance of symmetry to asymmetrical breasts |
US10675794B2 (en) | 2011-02-24 | 2020-06-09 | 3M Innovative Properties Company | Coated abrasive article with foam backing and method of making |
US11285642B2 (en) * | 2016-04-29 | 2022-03-29 | Aplix | Moulding apparatus for forming a fastening device |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102016114933A1 (de) * | 2016-08-11 | 2018-02-15 | Bikoma Gmbh Spezialmaschinen | Verfahren zum Erzeugen einer Prägung und entsprechende Vorrichtung |
Citations (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1095290A (de) * | ||||
US2681612A (en) * | 1951-01-31 | 1954-06-22 | Kurt P Reimann | Means for embossing and printing |
US2776451A (en) * | 1952-02-16 | 1957-01-08 | Chavannes Ind Synthetics Inc | Apparatus for method for producing embossed thermoplastic film |
US2783175A (en) * | 1952-11-07 | 1957-02-26 | Decora Corp | Method for forming three dimensional patterns in textile material |
US2915787A (en) * | 1954-04-12 | 1959-12-08 | British Celanese | Embossing |
US3305419A (en) * | 1962-03-28 | 1967-02-21 | Allied Chem | Method of producing an embossed panel |
US3496043A (en) * | 1966-04-07 | 1970-02-17 | Robert O Ragan | Method of manufacturing an embossed laminated foam |
US3608006A (en) * | 1966-10-01 | 1971-09-21 | Furukawa Electric Co Ltd | Production of foamed polyolefin composite sheet |
US3657036A (en) * | 1969-10-02 | 1972-04-18 | Nat Gypsum Co | Method for production of rigid polyurethane articles |
US3966383A (en) * | 1974-12-30 | 1976-06-29 | Ethyl Corporation | Apparatus for embossing film |
US4022643A (en) * | 1975-12-24 | 1977-05-10 | Congoleum Corporation | Methods of manufacturing embossed resinous products |
JPS54149779A (en) * | 1978-05-17 | 1979-11-24 | Sekisui Plastics | Production of polyolefinic laminated resin sheet |
US4229406A (en) * | 1974-11-21 | 1980-10-21 | Borg-Warner Corporation | Method for preparing an embossed foamed latex sheet |
US4364892A (en) * | 1978-07-25 | 1982-12-21 | Helmut Rehlen | Process for surface treatment of foamed sheets |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE866846C (de) * | 1936-12-18 | 1953-02-12 | Int Latex Processes Ltd | Verfahren und Vorrichtung zum Herstellen von schwammfoermigen oder zelligen Kautschukwaren |
FR1505153A (fr) * | 1965-12-18 | 1967-12-08 | Procédé et moyen pour mettre en forme des substances thermoplastiques moussées ou expansées et articles ou objets ainsi obtenus | |
DE1704813A1 (de) * | 1966-09-20 | 1972-03-02 | Alcide Mora | Verfahren zur Herstellung reliefartig gemusterter Schaumstoffbahnen und zur Verbindung solcher Bahnen mit einer Auflagebahn sowie Vorrichtung zur Ausuebung des Verfahrens |
-
1982
- 1982-12-15 DE DE19823246368 patent/DE3246368A1/de not_active Withdrawn
-
1985
- 1985-04-30 US US06/728,868 patent/US4740258A/en not_active Expired - Fee Related
Patent Citations (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1095290A (de) * | ||||
US2681612A (en) * | 1951-01-31 | 1954-06-22 | Kurt P Reimann | Means for embossing and printing |
US2776451A (en) * | 1952-02-16 | 1957-01-08 | Chavannes Ind Synthetics Inc | Apparatus for method for producing embossed thermoplastic film |
US2783175A (en) * | 1952-11-07 | 1957-02-26 | Decora Corp | Method for forming three dimensional patterns in textile material |
US2915787A (en) * | 1954-04-12 | 1959-12-08 | British Celanese | Embossing |
US3305419A (en) * | 1962-03-28 | 1967-02-21 | Allied Chem | Method of producing an embossed panel |
US3496043A (en) * | 1966-04-07 | 1970-02-17 | Robert O Ragan | Method of manufacturing an embossed laminated foam |
US3608006A (en) * | 1966-10-01 | 1971-09-21 | Furukawa Electric Co Ltd | Production of foamed polyolefin composite sheet |
US3657036A (en) * | 1969-10-02 | 1972-04-18 | Nat Gypsum Co | Method for production of rigid polyurethane articles |
US4229406A (en) * | 1974-11-21 | 1980-10-21 | Borg-Warner Corporation | Method for preparing an embossed foamed latex sheet |
US3966383A (en) * | 1974-12-30 | 1976-06-29 | Ethyl Corporation | Apparatus for embossing film |
US4022643A (en) * | 1975-12-24 | 1977-05-10 | Congoleum Corporation | Methods of manufacturing embossed resinous products |
JPS54149779A (en) * | 1978-05-17 | 1979-11-24 | Sekisui Plastics | Production of polyolefinic laminated resin sheet |
US4364892A (en) * | 1978-07-25 | 1982-12-21 | Helmut Rehlen | Process for surface treatment of foamed sheets |
Cited By (63)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4929303A (en) * | 1987-03-11 | 1990-05-29 | Exxon Chemical Patents Inc. | Composite breathable housewrap films |
US5183672A (en) * | 1991-04-16 | 1993-02-02 | Gary W. Fetterhoff | Apparatus for forming at least one fold line pattern in a rigid plastic material |
US5268138A (en) * | 1991-04-16 | 1993-12-07 | Gary W. Fetterhoff | Method for forming at least one fold line pattern in a rigid plastic material |
US5304056A (en) * | 1991-04-16 | 1994-04-19 | James M. Park | Apparatus for sealing edges of corrugated plastic material |
US5356696A (en) * | 1991-04-16 | 1994-10-18 | Fetterhoff Gary W | Apparatus and method for sealing edges of corrugated plastic material |
US5350544A (en) * | 1992-03-06 | 1994-09-27 | Earth & Ocean Sports, Inc. | Method of preparing a cross-linked, polyethylene foam product by surface expansion of a foam |
US5460757A (en) * | 1993-12-29 | 1995-10-24 | Topstamp, Inc. | Method for manufacturing pre-inked stamps |
US5653166A (en) * | 1994-03-29 | 1997-08-05 | Winning Image, Inc. | Method for molding a design in low relief in an ink printed on fabric |
US5698153A (en) * | 1994-04-29 | 1997-12-16 | The Boeing Co. | Method of prescoring foam board |
US6419776B1 (en) * | 1994-04-29 | 2002-07-16 | The Boeing Company | Method of prescoring foam board |
US6258308B1 (en) | 1996-07-31 | 2001-07-10 | Exxon Chemical Patents Inc. | Process for adjusting WVTR and other properties of a polyolefin film |
US5776510A (en) * | 1996-11-01 | 1998-07-07 | Sealed Air Corporation | On-demand production of foam cushions with defined three-dimensional geometry |
US5765688A (en) * | 1996-11-25 | 1998-06-16 | Sealed Air Corporation | Embossed foam in bag cushions |
US6142053A (en) * | 1997-07-23 | 2000-11-07 | Foamex L.P. | Method of cutting a cellular polymer surface with a continous platform cutting apparatus |
US6675691B1 (en) | 1997-07-23 | 2004-01-13 | Foamex L.P. | Continuous platform cutting apparatus |
US6173638B1 (en) | 1997-07-23 | 2001-01-16 | Foamex L.P. | Method for cutting a cellular polymer surface with multiple continuous platforms |
US6085627A (en) * | 1997-07-23 | 2000-07-11 | Foamex L.P. | Apparatus for cutting a cellular polymer surface with multiple continuous platforms |
WO1999004939A1 (en) | 1997-07-23 | 1999-02-04 | Foamex L.P. | Continuous platform cutting apparatus |
US6467386B1 (en) | 1997-07-23 | 2002-10-22 | Foamex L.P. | Multiple continuous platform cutting apparatus |
US6513414B1 (en) | 1997-07-23 | 2003-02-04 | Foamex L.P. | Method of cutting a cellular polymer surface with a continuous platform cutting apparatus |
US6546836B1 (en) | 1997-07-23 | 2003-04-15 | Foamex L.P. | Continuous platform cutting apparatus for cutting a cellular polymer surface |
US6668698B1 (en) | 1997-07-23 | 2003-12-30 | Foamex L.P. | Continuous platform cutting method |
US6024907A (en) * | 1998-02-02 | 2000-02-15 | Bruce Jagunich | Embossing with an endless belt composed of a shape memory alloy |
EP1090950A1 (de) * | 1998-06-25 | 2001-04-11 | NHK Spring Co., Ltd. | Oberflächenverzierte schaumhaut von vernetztem weichem kautschukartigem olefinharz |
EP1090950A4 (de) * | 1998-06-25 | 2003-07-09 | Nhk Spring Co Ltd | Oberflächenverzierte schaumhaut von vernetztem weichem kautschukartigem olefinharz |
US6264864B1 (en) | 1998-10-16 | 2001-07-24 | Exxon Chemical Patents Inc. | Process for producing polyolefin microporous breathable film |
US6706228B2 (en) | 1998-10-16 | 2004-03-16 | Exxonmobil Chemical Company | Process for producing polyolefin microporous breathable film |
US20040028870A1 (en) * | 2002-02-05 | 2004-02-12 | Lehr Gregory S. | Laminate inlay process for sports boards |
US6966815B2 (en) * | 2002-06-14 | 2005-11-22 | Invists North America S.R.R.L. | Shaped anti-roll supports and garments incorporating such supports |
US20040151875A1 (en) * | 2003-02-04 | 2004-08-05 | Lehr Gregory S. | Laminate inlay process for sports boards |
US7368031B2 (en) | 2003-02-04 | 2008-05-06 | Wham-O, Inc. | Laminate inlay process for sports boards |
US20040266289A1 (en) * | 2003-06-24 | 2004-12-30 | Scott Burke | Expanded polystyrene core sports board |
US6908351B2 (en) | 2003-06-24 | 2005-06-21 | Wham-O, Inc. | Expanded polystyrene core sports board |
US20080185092A1 (en) * | 2007-02-02 | 2008-08-07 | S.D. Warren Company | Tip printing embossed surfaces |
US20080305714A1 (en) * | 2007-03-30 | 2008-12-11 | Sobah-Wilhelm Mary C | Bra and/or bra pad for providing the appearance of symmetry to asymmetrical breasts |
US10334890B2 (en) | 2007-03-30 | 2019-07-02 | Mary C. Sobah | Bra and/or bra pad for providing the appearance of symmetry to asymmetrical breasts |
US8506349B2 (en) | 2007-03-30 | 2013-08-13 | Mary C. Sobah-Wilhelm | Bra and/or bra pad for providing the appearance of symmetry to asymmetrical breasts |
US7833083B2 (en) | 2007-03-30 | 2010-11-16 | Sobah-Wilhelm Mary C | Bra and/or bra pad for providing the appearance of symmetry to asymmetrical breasts |
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